PI36068: WMQ ABENDA78 ABEND0C4 DURING EXECUTION OF SVRCONN CHANNEL EXIT 15/05/15 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After installation of RSU1403 an exit running under the CHIN
  address space terminates with ABENDA78 RC10 indicating that a
  STORAGE RELEASE was requested against an ACEE that is already
  free. A follow on symptom was an ABEND0C4 in Top Secret module
  TSSMVS2 as it tries to reference the same ACEE (for RACROUTE
  DELETE).
  ADDITIONAL SEARCH KEYWORDS :
  TOP SECRET TSS RACROUTE DELETE TSSRSVCS TSSRSVAA TSS9999E
  CA TSSMVS2 CSQX111E CSQX599E CSQX053E lpiSPIMQGETM 2018
  TSS9406E PROBABLE SITE INTERFACING ERROR
  

Local fix

• Set SHARECNV to 0
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ Version 7          *
  *                 Release 0 Modification 1 and                 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: A SVRCONN channel with SHARECNV>1 and   *
  *                      Send or/and Receive exits configured    *
  *                      can cause abends (0C4, 0C1, SA78) in    *
  *                      the exit code.                          *
  *                                                              *
  *                      The message CSQX112E is issued and the  *
  *                      channel connection is terminated.       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  After V710 PTF UK95417 for PM86902 or V701 PTF UI14520 for
  PI08162, if a SVRCONN channel is configured with SHARECNV>1 and
  send or/and receive exits, the channel will call the exits using
  the same ExitUserArea storage for all the channel conversations.
  This causes the observed abends because the exit expects a
  separate ExitUserArea for each conversation.
  

Problem conclusion

• The CHIN code has been changed to call channel exits using a
  ExitUserArea allocated for each channel conversation.
  010Y
  100Y
  CSQXREXT
  CSQXRMAS
  CSQXRMRS
  CSQXRMSS
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  PI41923 UI28377 UI28378

Modules/Macros

• CSQXREXT CSQXRMAS CSQXRMRS CSQXRMSS
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R010 PSY UI28377

     UP15/08/14 P F508 {

• R100 PSY UI28378

     UP15/08/14 P F508 {

Fix is available

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